[ARM] 5393/1: Add W90P910 EVB NOR flash driver

Add W90P910 Evaluate Board NOR flash driver support,
The EV Board default support W19B320ABT7H of Winbond inc.
Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-w90x900/mach-w90p910evb.c

@@ -22,6 +22,7 @@
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
+#include <linux/mtd/physmap.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -32,6 +33,52 @@
 #include <mach/map.h>
 
 #include "cpu.h"
+/*w90p910 evb norflash driver data */
+
+#define W90P910_FLASH_BASE	0xA0000000
+#define W90P910_FLASH_SIZE	0x400000
+
+static struct mtd_partition w90p910_flash_partitions[] = {
+	{
+		.name	=	"NOR Partition 1 for kernel (960K)",
+		.size	=	0xF0000,
+		.offset	=	0x10000,
+	},
+	{
+		.name	=	"NOR Partition 2 for image (1M)",
+		.size	=	0x100000,
+		.offset	=	0x100000,
+	},
+	{
+		.name	=	"NOR Partition 3 for user (2M)",
+		.size	=	0x200000,
+		.offset	=	0x00200000,
+	}
+};
+
+static struct physmap_flash_data w90p910_flash_data = {
+	.width		=	2,
+	.parts		=	w90p910_flash_partitions,
+	.nr_parts	=	ARRAY_SIZE(w90p910_flash_partitions),
+};
+
+static struct resource w90p910_flash_resources[] = {
+	{
+		.start	=	W90P910_FLASH_BASE,
+		.end	=	W90P910_FLASH_BASE + W90P910_FLASH_SIZE - 1,
+		.flags	=	IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device w90p910_flash_device = {
+	.name		=	"physmap-flash",
+	.id		=	0,
+	.dev		= {
+				.platform_data = &w90p910_flash_data,
+			},
+	.resource	=	w90p910_flash_resources,
+	.num_resources	=	ARRAY_SIZE(w90p910_flash_resources),
+};
 
 static struct map_desc w90p910_iodesc[] __initdata = {
 };
@@ -40,6 +87,7 @@ static struct map_desc w90p910_iodesc[] __initdata = {
 
 static struct platform_device *w90p910evb_dev[] __initdata = {
 	&w90p910_serial_device,
+	&w90p910_flash_device,
 };
 
 static void __init w90p910evb_map_io(void)